These are all great suggestions. I'm sure I'm not the only knucklehead to think of this, but if your UHF works, but marginally, just get a piece of coax with "F" connectors on both ends, and using a female to female coupler relocate your existing remote antenna from the back of the receiver (and wire clutter) to a higher and less obstructed position. Better yet, just take the coax and strip off the far end jacket and braid to the length of the existing remote antenna and you'll have a cleaner and easier to use antenna. It works best with a vertical orientation, as when mounting it on the receiver.